.left_nav{
	width: 200px;
	height: 400px;
  float:left;
	background: #ECECEC;
	box-shadow: 2px 2px 2px #8C8C8C;
<<<<<<< HEAD
	margin-left: 10px; 
  float: left;
=======
	margin-left: 10px;  
<<<<<<< HEAD
	float:left;
>>>>>>> a0a2f0b29f86a3c12ec7ce539353068cce17158b
=======
>>>>>>> 79c9b497f3c65895301f80ba782aa12597a0c8a1
>>>>>>> 37b78aa1168ab50108ee014713debbe21f346ec2
}
.left_nav p{
      width: 200px;
      text-align: center;
      font-size: 24px;
      height: 50px;
      line-height: 50px;  
      background: dodgerblue; 
}
.left_nav p a{	
    display: block;
    width: 50px;              
    float: right;
}
.left_nav .list{
   width: 200px;
   height: 300px; 
   margin-top: -10px;
}
.left_nav .list .list-bg{
	background: yellowgreen;
}
.left_nav .list li{  
   width: 200px;
   height: 50px;
   line-height: 50px;
   list-style: none;
   padding-left:30px;
   border-bottom: 1px solid #C0C0C0;
   margin-left: -40px;
} 
  .left_nav .list li a{
  
    text-decoration: none;
 }